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Issue 22, 2003
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On the state of the titanium and zirconium in Ti- or Zr-doped NaAlH4 hydrogen storage material

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Abstract

The state of the titanium and zirconium in metal doped NaAlH4 was studied by X-ray diffraction analysis and quantitative Rietveld refinements. For the Ti-doped system, Ti is present in a highly dispersed, X-ray amorphous phase together with metallic aluminium. After the extraction of NaAlH4, an Al–Ti alloy forms upon heating of the solid. For the Zr-doped system, an Al–Zr alloy forms already during the doping procedure and remains during the de- and rehydrogenation cycles.

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Publication details

The article was received on 06 Aug 2003, accepted on 29 Sep 2003 and first published on 14 Oct 2003


Article type: Paper
DOI: 10.1039/B309409J
Citation: Phys. Chem. Chem. Phys., 2003,5, 5149-5153
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    On the state of the titanium and zirconium in Ti- or Zr-doped NaAlH4 hydrogen storage material

    C. Weidenthaler, A. Pommerin, M. Felderhoff, B. Bogdanović and F. Schüth, Phys. Chem. Chem. Phys., 2003, 5, 5149
    DOI: 10.1039/B309409J

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